sdcc/sdas/as8051/i8051.h

   1 /* i8051.h */
   2
   3 /*
   4  *  Copyright (C) 1998-2009  Alan R. Baldwin
   5  *
   6  *  This program is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  *
  19  *
  20  * Alan R. Baldwin
  21  * 721 Berkeley St.
  22  * Kent, Ohio  44240
  23  *
  24  *   This Assember Ported by
  25  *      John L. Hartman (JLH)
  26  *      jhartman at compuserve dot com
  27  *      noice at noicedebugger dot com
  28  *
  29  */
  30
  31 /*)BUILD
  32         $(PROGRAM) =    AS8051
  33         $(INCLUDE) = {
  34                 ASXXXX.H
  35                 I8051.H
  36         }
  37         $(FILES) = {
  38                 I51MCH.C
  39                 I51ADR.C
  40                 I51PST.C
  41                 ASMAIN.C
  42                 ASDBG.C
  43                 ASLEX.C
  44                 ASSYM.C
  45                 ASSUBR.C
  46                 ASEXPR.C
  47                 ASDATA.C
  48                 ASLIST.C
  49                 ASOUT.C
  50         }
  51         $(STACK) = 3000
  52 */
  53
  54 /*
  55  * Symbol types.
  56  */
  57 #define S_INH   50              /* One byte inherent */
  58 #define S_JMP11 51              /* Jump and call 11 bit. */
  59 #define S_JMP16 52              /* Jump and call 16 bit */
  60 #define S_ACC   53              /* Accumulator */
  61 #define S_TYP1  54              /* Type 1 (inc and dec) */
  62 #define S_TYP2  55              /* Type 2 (arith ops) */
  63 #define S_TYP3  56              /* Type 3 (logic ops) */
  64 #define S_TYP4  57              /* Type 4 (XCH) */
  65 #define S_MOV   58              /* MOV */
  66 #define S_BITBR 59              /* bit branch */
  67 #define S_BR    60              /* branch */
  68 #define S_ACBIT 61              /* CLR, CPL */
  69 #define S_CJNE  62              /* CJNE */
  70 #define S_DJNZ  63              /* DJNZ */
  71 #define S_JMP   64              /* JMP */
  72 #define S_MOVC  65              /* MOVC */
  73 #define S_MOVX  66              /* MOVX */
  74 #define S_AB    67              /* AB (div and mul) */
  75 #define S_CPL   68              /* CPL */
  76 #define S_SETB  69              /* SETB */
  77 #define S_DIRECT 70             /* DIRECT (pusha and pop) */
  78 #define S_XCHD  71              /* XCHD */
  79
  80 /* Addressing modes */
  81 #define S_A      30             /* A */
  82 /* #define S_B   31 */          /* B */
  83 #define S_C      32             /* C (carry) */
  84 #define S_RAB    33             /* AB */
  85 #define S_DPTR   34             /* DPTR */
  86 #define S_REG    35             /* Register R0-R7 */
  87 #define S_IMMED  36             /* immediate */
  88 #define S_DIR    37             /* direct */
  89 #define S_EXT    38             /* extended */
  90 #define S_PC     39             /* PC (for addressing mode) */
  91
  92 #define S_AT_R   40             /* @R0 or @R1 */
  93 #define S_AT_DP  41             /* @DPTR */
  94 #define S_AT_APC 42             /* @A+PC */
  95 #define S_AT_ADP 43             /* @A+DPTR */
  96 #define S_NOT_BIT 44             /* /BIT (/DIR) */
  97
  98 /*
  99  * Registers.  Value  == address in RAM, except for PC
 100  */
 101 #define R0      0
 102 #define R1      1
 103 #define R2      2
 104 #define R3      3
 105 #define R4      4
 106 #define R5      5
 107 #define R6      6
 108 #define R7      7
 109 #define A       0xE0
 110 #define DPTR    0x82
 111 #define PC      0xFF            /* dummy number for register ID only */
 112 #define AB      0xFE            /* dummy number for register ID only */
 113 #define C       0xFD            /* dummy number for register ID only */
 114
 115 struct adsym
 116 {
 117         char    a_str[5];       /* addressing string (length for DPTR+null)*/
 118         int     a_val;          /* addressing mode value */
 119 };
 120
 121 /* pre-defined symbol structure: name and value */
 122 struct PreDef
 123 {
 124    char *id;            /* ARB */
 125    int  value;
 126 };
 127 extern struct PreDef preDef[];
 128
 129         /* machine dependent functions */
 130
 131 #ifdef  OTHERSYSTEM
 132
 133         /* i51adr.c */
 134 extern  struct  adsym   reg51[];
 135 extern  int             addr(struct expr *esp);
 136 extern  int             admode(struct adsym *sp);
 137 extern  int             any(int c, char *str);
 138 extern  int             srch(char *str);
 139 extern  int             reg(void);
 140
 141         /* i51mch.c */
 142 extern  VOID            machine(struct mne *mp);
 143 extern  int             mchpcr(struct expr *esp);
 144 extern  VOID            minit(void);
 145
 146 #else
 147
 148         /* i51adr.c */
 149 extern  struct  adsym   reg51[];
 150 extern  int             addr();
 151 extern  int             admode();
 152 extern  int             any();
 153 extern  int             srch();
 154 extern  int             reg();
 155
 156         /* i51mch.c */
 157 extern  VOID            machine();
 158 extern  int             mchpcr();
 159 extern  VOID            minit();
 160
 161 #endif